From September 3 to 5, the 12th China International Polyurethane Exhibition, co-sponsored by China Minmetals Corporation and China Polyurethane Industry Association, was held at Shanghai New International Expo Center, attracting more than 400 exhibitors and nearly 10,000 visitors View the exhibition. The picture shows Liao Zengtai, President of Wanhua Chemical, introduced the new polyurethane material developed by the company to Li Shousheng, the executive vice chairman of the China Petrochemical Federation.